Glossary
Average: Also known as the mean. Found by adding the numbers in a group and dividing by the number of numbers in the group.
Blind Study: A study in which the participants are unaware as to whether they are in the control group or the experimental group or the experimental group

Research
For fifty years, research and evaluation have documented Head Start's impact on school readiness, academic achievement, health, family stability, and long-term success.
As a nonprofit membership and advocacy organization, NHSA sees its role in research as:

Research by Topic
Below are links to compilations of research on some of the most important topics for Head Start practitioners. While these aim to gather useful resources and research, they are by no means exhaustive. For additional research sources and strategies for navigating them, visit Accessing and Reading Research.

NHSA is excited to be launching an important new Head Start Parent, Family and Community Engagement Study! This study, led by NORC at the University of Chicago with guidance from the National Head Start Association and Region V Head Start Association, will inform our national understanding of parent engagement and create a tool to help local programs collect better information from parents about their experiences.